Get and set the text of an element without its markup.
var elem = document.querySelector('#some-elem');
// Get text content
var text = elem.textContent;
// Set text content
elem.textContent = 'We can dynamically change the content.';
// Add text to the end of an element's existing content
elem.textContent += ' Add this after what is already there.';
// Add text to the beginning of an element's existing content
elem.textContent = 'We can add this to the beginning. ' + elem.textContent;